#region Apache License
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//
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// Licensed to the Apache Software Foundation (ASF) under one or more
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// contributor license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright ownership.
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// The ASF licenses this file to you under the Apache License, Version 2.0
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// (the "License"); you may not use this file except in compliance with
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// the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#endregion
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using System;
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namespace log4net.Core
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{
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/// <summary>
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/// A SecurityContext used by log4net when interacting with protected resources
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/// </summary>
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/// <remarks>
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/// <para>
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/// A SecurityContext used by log4net when interacting with protected resources
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/// for example with operating system services. This can be used to impersonate
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/// a principal that has been granted privileges on the system resources.
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/// </para>
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/// </remarks>
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/// <author>Nicko Cadell</author>
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public abstract class SecurityContext
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{
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/// <summary>
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/// Impersonate this SecurityContext
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/// </summary>
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/// <param name="state">State supplied by the caller</param>
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/// <returns>An <see cref="IDisposable"/> instance that will
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/// revoke the impersonation of this SecurityContext, or <c>null</c></returns>
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/// <remarks>
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/// <para>
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/// Impersonate this security context. Further calls on the current
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/// thread should now be made in the security context provided
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/// by this object. When the <see cref="IDisposable"/> result
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/// <see cref="IDisposable.Dispose"/> method is called the security
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/// context of the thread should be reverted to the state it was in
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/// before <see cref="Impersonate"/> was called.
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/// </para>
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/// </remarks>
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public abstract IDisposable Impersonate(object state);
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}
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}
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